summaryrefslogtreecommitdiff
path: root/lib_arm
diff options
context:
space:
mode:
authorTerry Lv <r65388@freescale.com>2010-02-24 18:34:13 +0800
committerTerry Lv <r65388@freescale.com>2010-03-04 14:55:00 +0800
commitbd6578e46d1ba93ffe6e00147704d7d18c7e5573 (patch)
tree424b9a30a2e791ff267b2aaa27d0d52186693b8e /lib_arm
parent871825c1148b233fb562c09204700b59fcd28b67 (diff)
downloadu-boot-imx-bd6578e46d1ba93ffe6e00147704d7d18c7e5573.zip
u-boot-imx-bd6578e46d1ba93ffe6e00147704d7d18c7e5573.tar.gz
u-boot-imx-bd6578e46d1ba93ffe6e00147704d7d18c7e5573.tar.bz2
ENGR00120520: Enable MMU for mx51 and mx35
MMU enable code is missed in mx51 and mx35 u-boot. So add these codes. Signed-off-by: Terry Lv <r65388@freescale.com>
Diffstat (limited to 'lib_arm')
-rw-r--r--lib_arm/Makefile3
-rw-r--r--lib_arm/cache-cp15.c120
2 files changed, 0 insertions, 123 deletions
diff --git a/lib_arm/Makefile b/lib_arm/Makefile
index 0293348..6b1561b 100644
--- a/lib_arm/Makefile
+++ b/lib_arm/Makefile
@@ -39,9 +39,6 @@ GLCOBJS += div0.o
COBJS-y += board.o
COBJS-y += bootm.o
COBJS-y += cache.o
-ifndef CONFIG_SYS_NO_CP15_CACHE
-COBJS-y += cache-cp15.o
-endif
COBJS-y += interrupts.o
COBJS-y += reset.o
diff --git a/lib_arm/cache-cp15.c b/lib_arm/cache-cp15.c
deleted file mode 100644
index 62ed54f..0000000
--- a/lib_arm/cache-cp15.c
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * (C) Copyright 2002
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <asm/system.h>
-
-#if !(defined(CONFIG_SYS_NO_ICACHE) && defined(CONFIG_SYS_NO_DCACHE))
-static void cp_delay (void)
-{
- volatile int i;
-
- /* copro seems to need some delay between reading and writing */
- for (i = 0; i < 100; i++)
- nop();
-}
-
-/* cache_bit must be either CR_I or CR_C */
-static void cache_enable(uint32_t cache_bit)
-{
- uint32_t reg;
-
- reg = get_cr(); /* get control reg. */
- cp_delay();
- set_cr(reg | cache_bit);
-}
-
-/* cache_bit must be either CR_I or CR_C */
-static void cache_disable(uint32_t cache_bit)
-{
- uint32_t reg;
-
- reg = get_cr();
- cp_delay();
- set_cr(reg & ~cache_bit);
-}
-#endif
-
-#ifdef CONFIG_SYS_NO_ICACHE
-void icache_enable (void)
-{
- return;
-}
-
-void icache_disable (void)
-{
- return;
-}
-
-int icache_status (void)
-{
- return 0; /* always off */
-}
-#else
-void icache_enable(void)
-{
- cache_enable(CR_I);
-}
-
-void icache_disable(void)
-{
- cache_disable(CR_I);
-}
-
-int icache_status(void)
-{
- return (get_cr() & CR_I) != 0;
-}
-#endif
-
-#ifdef CONFIG_SYS_NO_DCACHE
-void dcache_enable (void)
-{
- return;
-}
-
-void dcache_disable (void)
-{
- return;
-}
-
-int dcache_status (void)
-{
- return 0; /* always off */
-}
-#else
-void dcache_enable(void)
-{
- cache_enable(CR_C);
-}
-
-void dcache_disable(void)
-{
- cache_disable(CR_C);
-}
-
-int dcache_status(void)
-{
- return (get_cr() & CR_C) != 0;
-}
-#endif